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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Common Share | The following table sets forth the computation of basic and diluted earnings per common share:
|  | Year Ended |
|  | December 31, 2017 |  |  | January 1, 2017 |  |  | January 3, 2016 |
|  | (In thousands, except per share data) |
Net income |  | $ | 1,104 |  |  | $ | 16,886 |  |  | $ | 15,297 |
Weighted-average shares of common stock outstanding: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 21,439 |  |  |  | 21,607 |  |  |  | 21,741 |
Dilutive effect of common stock equivalents arising from share option, nonvested share and nonvested share unit awards |  |  | 146 |  |  |  | 209 |  |  |  | 186 |
Diluted |  |  | 21,585 |  |  |  | 21,816 |  |  |  | 21,927 |
Basic earnings per share |  | $ | 0.05 |  |  | $ | 0.78 |  |  | $ | 0.70 |
Diluted earnings per share |  | $ | 0.05 |  |  | $ | 0.77 |  |  | $ | 0.70 |
Antidilutive share option awards excluded from diluted calculation |  |  | 83 |  |  |  | 200 |  |  |  | 481 |
Antidilutive nonvested share and nonvested share unit awards excluded from diluted calculation |  |  | 145 |  |  |  | — |  |  |  | 2 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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